Home / 27,867.10-38,418.62-19,895.48

Finding the Fourth Proportional to 27,867.10, 38,418.62 and 19,895.48

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Solution

The fourth proportional to 27,867.10, 38,418.62 and 19,895.48 is: 27,428.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,867.10 : 38,418.62 = 19,895.48 : x
  2. Step 2: Convert to fraction form
    27,867.10/38,418.62 = 19,895.48/x
  3. Step 3: Cross multiply
    27,867.10x = 38,418.62 × 19,895.48
  4. Step 4: Simplify right side
    27,867.10x = 764,356,885.84
  5. Step 5: Solve for x
    x = 764,356,885.84/27,867.10
  6. Step 6: Final answer
    x = 27,428.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.